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Regulation of Gluconeogenesis
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Regulation of Gluconeogenesis

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Questions and Answers

What is the main inhibitory hormone for gluconeogenesis?

  • Glucocorticoids
  • Adrenaline
  • Insulin (correct)
  • Glucagon
  • How does insulin affect the activity of key gluconeogenic enzymes?

  • Decreases their activity (correct)
  • Has no effect on them
  • Halts their production
  • Increases their activity
  • Which hormone is the primary stimulatory hormone for promoting gluconeogenesis during fasting?

  • Insulin
  • Thyroid hormone
  • Glucagon (correct)
  • Estrogen
  • What effect do glucocorticoids have on gluconeogenesis?

    <p>Both stimulate and inhibit</p> Signup and view all the answers

    Which enzyme's activity is decreased by insulin to suppress gluconeogenesis?

    <p>Glucose-6-phosphatase</p> Signup and view all the answers

    How does glucagon increase the availability of gluconeogenic precursors?

    <p>Stimulates breakdown of glycogen</p> Signup and view all the answers

    What effect do metabolites like fructose-2,6-bisphosphate (F2,6BP) and AMP have on gluconeogenesis?

    <p>F2,6BP inhibits a key enzyme while AMP inhibits another enzyme</p> Signup and view all the answers

    How does limited substrate availability impact gluconeogenesis?

    <p>Limited substrates hinder the process of gluconeogenesis</p> Signup and view all the answers

    What role does gene expression play in the regulation of gluconeogenesis?

    <p>Gene expression influences the transcription of enzymes involved in gluconeogenesis</p> Signup and view all the answers

    Which factor can induce the transcription of genes encoding enzymes for gluconeogenesis?

    <p>Glucagon</p> Signup and view all the answers

    How do hormones like glucagon impact the regulation of gluconeogenesis?

    <p>Glucagon induces gene expression for enzymes aiding in gluconeogenesis</p> Signup and view all the answers

    What effect do allosteric regulators have on the enzymes in gluconeogenesis?

    <p>Allosteric regulators inhibit enzyme activity in specific steps of gluconeogenesis</p> Signup and view all the answers

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